From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: Jie Gan <quic_jiegan@quicinc.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Konrad Dybcio <konradybcio@gmail.com>,
Mike Leach <mike.leach@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Jinlong Mao <quic_jinlmao@quicinc.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Tingwei Zhang <quic_tingweiz@quicinc.com>,
Yuanfang Zhang <quic_yuanfang@quicinc.com>,
Tao Zhang <quic_taozha@quicinc.com>,
Trilok Soni <quic_tsoni@quicinc.com>,
Song Chai <quic_songchai@quicinc.com>,
linux-arm-msm@vger.kernel.org, andersson@kernel.org,
quic_yijiyang@quicinc.com, quic_yuanjiey@quicinc.com,
quic_liuxin@quicinc.com, quic_yanzl@quicinc.com,
quic_xinlon@quicinc.com, quic_xueqnie@quicinc.com,
quic_sijiwu@quicinc.com
Subject: Re: [PATCH] Coresight: Set correct cs_mode for TPDM to fix disable issue
Date: Tue, 25 Jun 2024 13:24:11 +0100 [thread overview]
Message-ID: <2e78b732-aed7-4de5-b5ac-0da5b78af342@arm.com> (raw)
In-Reply-To: <20240625021212.1443304-1-quic_jiegan@quicinc.com>
On 25/06/2024 03:12, Jie Gan wrote:
> The coresight_disable_source_sysfs function should verify the
> mode of the coresight device before disabling the source.
> However, the mode for the TPDM device is always set to
> CS_MODE_DISABLED, resulting in the check consistently failing.
> As a result, TPDM cannot be properly disabled.
>
> To fix the issue:
> Configure CS_MODE_SYSFS/CS_MODE_PERF during the enablement of TPDM.
> Configure CS_MODE_DISABLED during the disablement of TPDM.
>
> Fixes: 1f5149c7751c("coresight: Move all sysfs code to sysfs file")
That looks like the wrong commit. This was a problem since the original
TPDM driver. I would say :
Fixes: b3c71626a933 ("Coresight: Add coresight TPDM source driver")
> Signed-off-by: Jie Gan <quic_jiegan@quicinc.com>
Otherwise, the patch looks good to me.
Please could you also fixup "dummy" source driver in a separate patch.
Suzuki
next prev parent reply other threads:[~2024-06-25 12:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-25 2:12 [PATCH] Coresight: Set correct cs_mode for TPDM to fix disable issue Jie Gan
2024-06-25 12:24 ` Suzuki K Poulose [this message]
2024-06-26 1:24 ` JieGan
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